Buffing machine



Ebb. w23. MMMS A. MANTHEI BUFFING MACHINE Filed Apr. 19, 1920 2 sheets-sheet 2 @Hifi Willa E?! Z/f,

Applicationr led april is,

To @ZZ whom t may concern.'

it known that rn'rrinn 7l citizen of the United crates, and resident oit Ke vaslruin in the con "y or tlilaehington and State or ldisconsin, have inverted` f tain new and useiiul improvements in Butti L.: Machines; and do hereby declare that the following is a full, clear, and exact descripA tion thereof.

My invention relates to new and useiul improvements in buiing and polishing machines, particularly those which are adapted iior use in preparing various lrinds ecep`- tacles for market.

The principal purpose o'l the invention is to provide a buihng and polishing` machine which is capable oi" practically universal ap plication. ln .other words, my primary ob ject is to produce a machine for holding an article while beine polished which can loc moved in a variety oi' directions with respect to thebuffing wheel.

, With this general object in View the invention consists of the novel Atentures ot construction, combination and arrangement ot parts which will be hereinaiter more par-- ticularly described and claimed.

ln the accompanying drawings:

Figure l represents a iront elevational view oi a machine constructed in accordance with the invention.

Figure 2 is a longitudinal vertical sec-- tional View through the upper portion of `the machiiie.

Figure 3 is a side elevational view ot the parts shown in Figure l, and

Figure 4tis a detail section on the plane ot the line lL-t of Figure 2.

Referring more particularly to the drawings, it will be seen that my improved machine includes a support l. formed on :a base 2, a stationary standard 3 and pivoted frame il. The frame et is connected to the base 2 by means of a pivot shatt 5 extending through the lower ends oi the former` and bearing ears (3 extending 'from the latter. The work carrying parts oic the machine are mounted upon the upper end oiu this pivoted frame 4.

This frame a is held in various positions with respect to the vertical plane of the pivot shaft 5 by means of a screw shaft '7, one end oi' which is threaded in a pivoted nut 8 carried by the upper end ot the standard 3, the other end being journalled in a pivo'ted Nrrinn i929. Serial No. 374,969.

bearing 9 in the upper end of said Ytraine. "ihe front end of the shaift i adjacent the jhaine el is provided with a hand wheel l() whereby the same can be eiectively revolved so as to rock the frame and the parts carried thereby as desired.

traine table li is mounted on the upper end of the pivoted :traine i and carries a `cylindrical bearing head l2 on which a bracket YlZ-S is rotatable, said bracket having a socket le in which said head is deposed as shown in Figure 2. The prere red means iior turi the bracket 13 upon the table ll, consists or' a worm gear ring 15 surrounding the socket lll, and a worm l@ journalled in bearings li" on said table. A hand wheel le on one end ot the worm shait provides means for readily manipulating the worm and worin gear.

rihe bracket 13 has a pair or upwardly projecting bracket arms V197 the ends o'r which are spaced apart and provided with bearingsQO and 2l. A sleeve 22 is slidable and non-rotatable in the bearing 2i and rotatably receives a drive shaft 23, one end portion ci which is slidably and rotatably mounted in the other bearing 20 The bearing sleeve 22 retained against rotation by the arrangement shown particularly in lligure 4h trom which figure it will be noticed that said sleeve has a pair ot dianietrica-lly opposed slots 2i in which splines extending from the wall. ot the bearing 2l. slide.

The sleeve 22 and shalt QS-Which is rotatable therein are movable longitudinally and held in different adjiusted positions by means oitD the rotation of a ieed screw 26, said screw having a nut- 27 thereon which is carried by a feed collar 28, the latter being locked to the said sleeve 22 as shown in Figure 2. The opposite ends olf this feed screw 26 are journalled in bearings carried by the ends of the bracket arms 'i9 and one end thereo'l2 has a bevel gear 29 fixed thereto in lposition to have its teeth meshed with a second bevel gear 30. vThe latter gear rotated through the instrumentality oi" a hand wheel T he drive shaft 28 is rotated by means of a motor 32 disposed on a motor support 33 which is fixed to and movable with the bracket socket 14C. Connection between the shaft 23 and the motor shaft is procured by a Worm B4 on the latter and the worm gear 35 slidably splined to the former. As clearly shown in Figure 4 when the sleeve 22 and the shaft 23 are movable longitudinally, the latter is slidable through the hub of the gear 35, but operative relation is maintained in View of the spline 36.

The end oi' the drive shaft 23 remote from the Worm gear 35 has a threaded collar 37 locked thereto and is adapted to receive a suitable Work carrying 'form (not shown). Located between this threaded collar 37 and the adjacent end of the sleeve 22 and secured to the latter to be held in nonrotative position is a hub 38 oi' a Work holding frame 39. As shown in Figure l this trame 39 is substantially rectangularI and in the side opposite that in which the hub 38 is mounted there is disposed a second hub 40. This latter hub provides a bearing for a spindle 4l, which is slidable therethrough, the inner end of said spindle having a Werl; engaging clamp head 42 By means oi' the spindle 4l the-clamp head 42 can be moved toward or away from the threaded collar 37 and When its linner limit of movement is reached it is locked by the disposition of a laterally extending handle 43 in' the notch of a latch plate 44. v

When a machine constructed in accordance with my invention is to be operated, the articleto bepolished is secured Within the frame 39 by being disposed on the hereini before mentioned `form which is threaded on the collar 37 and clamped thereagainst by means of the head 42. lnasmuch as the collar 37 is secured to the shaft 23 and the head 40 is rotatable, the article to be polished will .be rotated within the relatively stationary frame 39 by means of the motor 32. During the rotation of said article, the same and the frame 39 is readily movable outwardly away from the supporting bracket 13 by turning the hand Wheel 3l. A second movement of the Work holding frame and the article to be polished is possible by ro- Lil-44,475

`tating the hand wheel 13 which turns the enarticle to be polished and its trame 39 can be procured. ln other Words, the pivoted frame 4 and all of the mechanism of the table ll. can be rocked upon the pivot shaft 5. Any one or all oi' these different movements can be obtained selectively, independently or simultaneously, at the will ci' the operator.

From the immediate foregoing description, it will be obviousv that this improved butling and polishing machine is capable of substantially universal movement, thus rendering in applicable to many lrinds of Work Which heretofore had to he performed on diiferent machines with the consequent loss of time and considerable expense. Various changes may be made in the'diierent parts oi the invention and in its manner off' use, Without departing from or sacrilicing any of the advantages.

l claim:

ln a device of the class described, the com bination of a rotary shaft, a sleeve enveloping said shaft terminating short of the ends ot said shaft, a hub secured to vsaid shaft, a rectangular frame, one side oi' said frame being rigid with said hub, second hub rigid with said frame oppositely disposed and in alinement With said iirst mentioned hub, said second hub having an apertore therein, a stem slidable in said aperture, a handle laterally projecting from said stem, a latch plate having a notchfor the Vreception of said handle, and avvorlrengaging head on said stem inwardly disposed With respect to said second mentioned'hub tovWards said first mentioned hub.

Visconsin.

t ARTHUR MANTHE. 

